Which disease makes the air sacs in the lungs less elastic, reducing their ability to absorb oxygen?

True or false. repeated drug use may lead to drug tolerance which occurs when a user requires larger amounts of the drug to achieve the desired effect.

Which is one way that sinkholes can form? a) tornadoes touch down and destroy trees and brush b) rivera overflow during a storm and wash away nearby land c) rainwater flows away from a depression in the ground d) groundwater dissolves the limestone and other rocks in the ground

Which health resource is most appropriate for a woman who thinks she might be pregnant?